diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-dell-laptop | 8 | ||||
| -rw-r--r-- | Documentation/admin-guide/sysctl/kernel.rst | 21 | ||||
| -rw-r--r-- | Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 34 |
3 files changed, 59 insertions, 4 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-dell-laptop b/Documentation/ABI/testing/sysfs-platform-dell-laptop index 8c6a0b8e1131..9b917c7453de 100644 --- a/Documentation/ABI/testing/sysfs-platform-dell-laptop +++ b/Documentation/ABI/testing/sysfs-platform-dell-laptop @@ -2,7 +2,7 @@ What: /sys/class/leds/dell::kbd_backlight/als_enabled Date: December 2014 KernelVersion: 3.19 Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, - Pali Rohár <pali.rohar@gmail.com> + Pali Rohár <pali@kernel.org> Description: This file allows to control the automatic keyboard illumination mode on some systems that have an ambient @@ -13,7 +13,7 @@ What: /sys/class/leds/dell::kbd_backlight/als_setting Date: December 2014 KernelVersion: 3.19 Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, - Pali Rohár <pali.rohar@gmail.com> + Pali Rohár <pali@kernel.org> Description: This file allows to specifiy the on/off threshold value, as reported by the ambient light sensor. @@ -22,7 +22,7 @@ What: /sys/class/leds/dell::kbd_backlight/start_triggers Date: December 2014 KernelVersion: 3.19 Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, - Pali Rohár <pali.rohar@gmail.com> + Pali Rohár <pali@kernel.org> Description: This file allows to control the input triggers that turn on the keyboard backlight illumination that is @@ -45,7 +45,7 @@ What: /sys/class/leds/dell::kbd_backlight/stop_timeout Date: December 2014 KernelVersion: 3.19 Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, - Pali Rohár <pali.rohar@gmail.com> + Pali Rohár <pali@kernel.org> Description: This file allows to specify the interval after which the keyboard illumination is disabled because of inactivity. diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index 335696d3360d..6dd406758f4a 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -446,6 +446,27 @@ Notes: successful IPC object allocation. If an IPC object allocation syscall fails, it is undefined if the value remains unmodified or is reset to -1. +modprobe: +========= + +The path to the usermode helper for autoloading kernel modules, by +default "/sbin/modprobe". This binary is executed when the kernel +requests a module. For example, if userspace passes an unknown +filesystem type "foo" to mount(), then the kernel will automatically +request the module "fs-foo.ko" by executing this usermode helper. +This usermode helper should insert the needed module into the kernel. + +This sysctl only affects module autoloading. It has no effect on the +ability to explicitly insert modules. + +If this sysctl is set to the empty string, then module autoloading is +completely disabled. The kernel will not try to execute a usermode +helper at all, nor will it call the kernel_module_request LSM hook. + +If CONFIG_STATIC_USERMODEHELPER=y is set in the kernel configuration, +then the configured static usermode helper overrides this sysctl, +except that the empty string is still accepted to completely disable +module autoloading as described above. nmi_watchdog ============ diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt new file mode 100644 index 000000000000..c527d05c0459 --- /dev/null +++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt @@ -0,0 +1,34 @@ +# +# Feature name: debug-vm-pgtable +# Kconfig: ARCH_HAS_DEBUG_VM_PGTABLE +# description: arch supports pgtable tests for semantics compliance +# + ----------------------- + | arch |status| + ----------------------- + | alpha: | TODO | + | arc: | ok | + | arm: | TODO | + | arm64: | ok | + | c6x: | TODO | + | csky: | TODO | + | h8300: | TODO | + | hexagon: | TODO | + | ia64: | TODO | + | m68k: | TODO | + | microblaze: | TODO | + | mips: | TODO | + | nds32: | TODO | + | nios2: | TODO | + | openrisc: | TODO | + | parisc: | TODO | + | powerpc: | ok | + | riscv: | TODO | + | s390: | ok | + | sh: | TODO | + | sparc: | TODO | + | um: | TODO | + | unicore32: | TODO | + | x86: | ok | + | xtensa: | TODO | + ----------------------- |